Cheapest one-way flights from Boston to Frankfurt in December from 231€

AirHint found the following cheapest one-way flights from Boston (BOS) to Frankfurt (FRA) in December 2025 (see full year).

One-Way flights

11 Dec Air France
03 Dec Icelandair
17 Dec Icelandair
21 Dec Icelandair
22 Dec Frontier Airlines
11 Dec United direct
03 Dec Lufthansa direct
21 Dec Lufthansa direct
17 Dec Lufthansa direct
22 Dec Lufthansa direct

Also check the deals for return flights from Boston to Frankfurt in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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